Correct Answer: A

Rationale: Recognizing signs of infant dehydration is crucial for ensuring the health and well-being of infants. Dehydration can be life-threatening for infants if not addressed promptly. Proper diaper changing techniques, while important for hygiene, can be learned incrementally. The immunization schedule and breastfeeding positions are also essential topics, but identifying signs of dehydration takes precedence as it requires immediate attention to prevent serious complications.

Correct Answer: A

Rationale: The correct short-term goal for the client in this scenario is option A: 'Eat 50% of six small meals each day by the end of the week.' This goal is specific, measurable, and time-bound, which aligns with the SMART criteria for goal setting in nursing care. It addresses the client's nutritional needs directly, focusing on increasing meal frequency to meet body requirements and counteract weight loss. Option B, 'Gain 5 pounds by the end of the month,' is not as suitable as it lacks specificity and a short-term timeline, making it less achievable within the immediate care plan. Option C, 'Have increased caloric intake,' is vague and does not provide a measurable target for the client to work towards. Option D, 'Show improved nutritional status,' is a broad goal that lacks the specificity needed for effective short-term goal setting in nursing care. Therefore, option A is the most appropriate choice for this client's short-term goal.

Correct Answer: D

Rationale: Cyanosis is a late sign of hypoxemia and indicates severe oxygen deprivation, necessitating immediate intervention in a client with a suspected pulmonary embolism. Chest pain, shortness of breath, and tachycardia are also concerning symptoms in pulmonary embolism; however, cyanosis signifies critical oxygen deficiency and warrants urgent attention to prevent further complications.

Correct Answer: D

Rationale: The correct answer is D: Serum sodium of 130 mEq/L. In SIADH, there is excess release of antidiuretic hormone leading to water retention and dilutional hyponatremia. A serum sodium level of 130 mEq/L indicates severe hyponatremia, which can result in neurological symptoms, such as confusion, seizures, and coma. Therefore, immediate intervention is required to prevent further complications. Choice A, a serum sodium of 140 mEq/L, is within the normal range and does not require immediate intervention. Choice B, serum potassium of 4.5 mEq/L, is also within the normal range and is not directly related to SIADH. Choice C, serum osmolality of 280 mOsm/kg, is a measure of the concentration of solutes in the blood and may not be the most critical parameter to address in a client with SIADH and severe hyponatremia.

Correct Answer: D

Rationale: The correct answer is to advise the client to begin a low sodium diet immediately. High sodium intake can contribute to elevated blood pressure levels. By reducing sodium intake, blood pressure can be effectively lowered. Option A, participating in an exercise program, is beneficial for overall health but may not provide immediate impact on blood pressure. Option B, obtaining blood pressure daily for 2 weeks, may not address the underlying cause or provide immediate intervention. Option C, increasing dietary intake of omega-3 fatty acids, though beneficial for heart health, may not have an immediate impact on lowering blood pressure compared to reducing sodium intake.